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tps adjustment screw

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Old Apr 21, 2009 | 05:22 PM
  #1  
sheardog's Avatar
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From: Portland,Oregon
Car: 1987 camaro
Engine: 5.0 ccc q-jet
Transmission: 700R4
tps adjustment screw

i recently rebuilt my e4me ccc-qjet and while placing the airhorn i broke the plunger on the tps, i have replaced the tps but now the car runs rough and wants to stall after its warm enough to open the choke. do i need to adjust the screw under the plug or should the factory setting still be correct since i did not change the airhorn?
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Old Apr 21, 2009 | 06:08 PM
  #2  
five7kid's Avatar
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
You are setting the carb and TPS to each other. So, you need to check the voltage and adjust accordingly.
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Old Apr 23, 2009 | 03:53 AM
  #3  
sheardog's Avatar
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From: Portland,Oregon
Car: 1987 camaro
Engine: 5.0 ccc q-jet
Transmission: 700R4
Re: tps adjustment screw

Originally Posted by five7kid
You are setting the carb and TPS to each other. So, you need to check the voltage and adjust accordingly.
thank you sir i will check the thread for rebuild and get the correct voltage reading then see what i get on the tps.
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Old Apr 23, 2009 | 06:28 AM
  #4  
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naf
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From: Lexington, SC
Car: 1987 SC/1985 TA
Engine: 350/vortec/fitech
Transmission: T56
Axle/Gears: 3.27 9-bolt
Re: tps adjustment screw

1. Set timing
2. Set TPS for 0.40 (as close as you can) volts at idle
3. Adjust idle mixture screws and Idle Air Bleed for 50% duty cycle on Mixture Control Solenoid.

Let us know if the TPS adjustment fixes it. May have a little fine tuning to do on the carb rebuild.
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